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Engine numbers
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1105
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Joined: April 18, 2013
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Location: Billings Montana
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PostPosted: Wed Jul 27, 2016 7:31 pm    Post subject: Engine numbers Reply with quote

I have two engines that I am not sure what year they are. They are at least 40hp type engine.
One is numbered 3904818 and appears to be a very early 61 but not sure. The other has a bus muffler on it and again may be a very early 40hp number 5868175 or it could be a bastard 36/40. Anyone have any ideas. Just because the one has a bus muffler on it does not mean it came from a bus as who knows where it has been all these years. Let me know what you think. I have been working on VW's and driving them since 1971
1105
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nlorntson
Crazy VW Lady


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PostPosted: Wed Jul 27, 2016 8:23 pm    Post subject: Re: Engine numbers Reply with quote

3904818 = June 1960 so I'd expect it to be a 36hp?

5868175 = June 1961 so that would be a 40hp
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glutamodo Premium Member
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PostPosted: Wed Jul 27, 2016 10:55 pm    Post subject: Re: Engine numbers Reply with quote

Neither of those numbers fall in the "bastard" series (which was 3.4-3.5 million) http://www.thesamba.com/vw/forum/viewtopic.php?t=187275&
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Andy T.


IMAGE NOTE: It has been noted that Chrome based browsers may have issues in displaying my vast image library, which use non-secure links and are on an FTP server. Images should still be viewable if the link is clicked though.
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1105
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PostPosted: Thu Jul 28, 2016 5:18 pm    Post subject: Re: Engine numbers Reply with quote

Thank you both. Crazy VW Lady that is the funny part. It is not a 36 but looks just like a 40. Weird. The number could have been altered or it is just when VW was changing to 40hp.
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nlorntson
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PostPosted: Thu Jul 28, 2016 8:39 pm    Post subject: Re: Engine numbers Reply with quote

What are the casting numbers on the case halves?
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glutamodo Premium Member
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PostPosted: Fri Jul 29, 2016 7:31 am    Post subject: Re: Engine numbers Reply with quote

Post a photo - it could be a new replacement engine block someone stamped an old number onto. I've seen it before:

Image may have been reduced in size. Click image to view fullscreen.


what about the date code stamps under the flywheel... example:

Image may have been reduced in size. Click image to view fullscreen.

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Andy T.


IMAGE NOTE: It has been noted that Chrome based browsers may have issues in displaying my vast image library, which use non-secure links and are on an FTP server. Images should still be viewable if the link is clicked though.
I do not know how to fix this. All I can say is it all works fine for me with what I use, Firefox.
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1105
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PostPosted: Fri Jul 29, 2016 6:31 pm    Post subject: Re: Engine numbers Reply with quote

Thanks Andy,
I will have to pull the flywheels to check them out.
1105
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